Information systems /
Llewellyn, Robert W.
Information systems / Robert W. Llewellyn. - Englewood Cliffs, N.J. : Prentice-Hall, 1976. - xiv, 347 p. : ill. ; 24 cm.
0134644875
Management information systems.
Information systems / Robert W. Llewellyn. - Englewood Cliffs, N.J. : Prentice-Hall, 1976. - xiv, 347 p. : ill. ; 24 cm.
0134644875
Management information systems.